URI的解码URIComponent

Question

我的代码不适用于Unicode字符（特殊字符）

我的代码-

static convertStringToBytes(toConvert) {
        if (typeof toConvert !== 'string') {
            return;
        }
        // Used to convert a string to a utf8 compatible string
        toConvert = unescape(encodeURIComponent(toConvert));
        return toConvert.split('')
            .map(char => char.charCodeAt(0));
    }

    static convertBytesToString(toConvert) {
        if (!Array.isArray(toConvert)) {
            return;
        }
        toConvert = toConvert
            .map(x => String.fromCharCode(x))
            .join('');
        // Used to convert a string to a utf8 compatible string
        return decodeURIComponent(escape(toConvert));
    }

这些是在加密和解密方法中使用的方法，

let str1 = 'Password123456';
        let ecd = this._encryptionService.encryptedString(str1, this.key);
        console.log("ecd 1", ecd);   

        let dcd = this._encryptionService.decryptedString(ecd, this.key);
        console.log("dcd 1", encodeURIComponent(dcd));  

        let str2 = 'öä#';
        let ecd2 = this._encryptionService.encryptedString(str2, this.key);
        console.log("ecd 2", ecd2);   

        let dcd2 = this._encryptionService.decryptedString(ecd2, this.key);
        console.log("dcd 1", dcd2);   

对于使用特殊字符的密码，它不起作用并给出错误信息。 URI malformed at decodeURIComponent (<anonymous>)